The present subjunctive mood is normally used when speaking about a thought, belief, expectation or assumption – and despite the name, this form can be used to speak about a future action (as well as a present action). For example: I hope you are fine – Espero que estés bien (present).
2. Teresa ( deber estudiar ) DEBE ESTUDIA 3. Yo ( assistir a clases) ASISTO A CLASES 4. Esteban (escribir cartas). ESCRIBE CARTAS 5. Tú ( leer libros). LEES UN LIBRO 6. Nancy ( vender libros). VENDE LIBROS